Semrau Engineering & Surveying is an engineering, consulting, and land surveying firm located in Mount Vernon, Washington, since 1979. Our firm specializes in surveying, planning, design, site civil development, environmental, water system and construction services to meet the needs of municipalities and individual property owners in Skagit, Island, Snohomish, and Whatcom counties.

Our staff possesses the wide range of disciplines and experiences that are critical to providing comprehensive consulting services for your projects.